#3127B0#3127B0

#3127B0 is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.5% C 0.204 H 274.9°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#3127B0
RGB	rgb(49, 39, 176)
HSL	hsl(244, 64%, 42%)
HSV	hsv(244, 78%, 69%)
CMYK	cmyk(72.2%, 77.8%, 0%, 31%)
CIE-LAB	lab(27.40, 47.59, -70.25)
CIE-LCH	lch(27.40, 84.85, 304.12°)
OKLab	oklab(39.49% 0.0174 -0.2031)
OKLCH	oklch(39.49% 0.204 274.9)
XYZ	xyz(9.8260, 5.2376, 41.5590)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3127B0 #A6B027

analogous

#2761B0 #3127B0 #7627B0

triadic

#3127B0 #B03127 #27B031

tetradic

#3127B0 #B02761 #A6B027 #27B076

square

#3127B0 #B02761 #A6B027 #27B076

split-complementary

#3127B0 #B07627 #61B027

monochromatic

#15114C #231C7E #3127B0 #4A40D5 #7A72E0

Accessibility & contrast

On white

10.25

#3127B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#3127B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3127B0

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3127B0	#FFFFFF	#000000	##FFFFFF
##3127B0	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B4

Deuteranopia (green-blind)

#003AAE

Tritanopia (blue-blind)

#00506B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3127b0;
/* rgb */ color: rgb(49, 39, 176);
/* oklch */ color: oklch(39.5% 0.204 274.9);

Tailwind

colors: {
  custom: {
    50: '#7d64c9',
    500: '#3127b0',
    950: '#000000',
  },
}

SCSS

$custom: #3127b0;
$custom-light: #7d64c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3127b0",
  "rgb": {
    "r": 49,
    "g": 39,
    "b": 176
  },
  "hsl": {
    "h": 244.38,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.39491,
    "c": 0.2039,
    "h": 274.9
  },
  "luminance": 0.05239
}

Semantic roles & 50–950 ramp

primary

#3127B0

secondary

#C0C76C

accent

#E741DB

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3127B0

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →